Sun StorageTek[TM] 5000 Series NAS: Adding new luns to NAS cluster gateway system

Asset ID:	1-71-1018302.1
Update Date:	2009-01-28
Keywords:

Solution Type Technical Instruction Sure

Solution 1018302.1 : Sun StorageTek[TM] 5000 Series NAS: Adding new luns to NAS cluster gateway system

Related Items


Sun Storage 5320 NAS Gateway/Cluster System
 Sun Storage 5320 NAS Appliance

Related Categories


GCS>Sun Microsystems>Storage - Disk>Network Attached Storage

PreviouslyPublishedAs
229706

Description
On a NAS cluster gateway system, lun ownership has to be established before any operation can be done to the new luns.
In a NAS-OS, LUN stamp is a software mechanism that manages these LUN ownership.

Steps to Follow
On a NAS cluster gateway system, there is no software available to create and map new luns to NAS cluster gateway system, so you have to use respective storage array configuration tools.
For an example:

- Sun StorageTek 6920/6540/6140/6130 uses CAM or Santricity.
- Sun StorageTek 9900 series uses Storage Navigator or Hi-Command software.
Apply storage lun masking and switch zoning to limit other hosts from accessing these new luns.

Telnet or ssh to the NAS Heads and follow the procedure below to add the new luns through NAS CLI menu.
(In the NAS, the new luns are called disks)

1. From both NAS heads scan the new disks.
CLI menu -> D. Disk & Volumes -> 9 to scan for new disk

  The new disks volumes are now showing as -- no partition table

2. From Head 1, assign ownership to each of the new disks.
User can assign either cluster Head1 or Head2 as disks owner.

- Select lun ownership
CLI menu -> Failover/Move LUN -> modify lun owner
-> select the LUN -> select owner (Head1 or Head2) and save

- Initialize the lun (from Head which owns lun)
CLI menu -> Disk -> select disk -> option 1 Initialize partition table
CLI is now showing disk size correctly.

3. From both Heads, do another disk scan.
User should now see all new LUNs with proper LUN ownership.

Exit the NAS CLI menu and run "disk" and "luninfo" command to confirm new disks.
User can now configure volumes as required.

Product
Sun StorageTek 5320 NAS Appliance
Sun StorageTek 5320 NAS Gateway/Cluster System
Sun StorageTek 5310 NAS Gateway/Cluster System

Internal Comments
For internal Sun use only.

If a LUN has no owner then user can not do anything to the system, and also failover and recovery might have problem if the LUN count is not the same on both heads.

Before user attempt to use the new LUNs, or do failover and recovery, make sure all LUNs have ownership assigned and both heads see all the new LUNs. Do not go any further until this is achieved.

Additional information:
Technical Instrcution <Document: 1008235.1> - NAS OS LUN stamp behaviour for new luns
Technical Instruction <Document: 1006899.1> - Sun StorageTek[TM] 99x0 System: Identifying LUNs on NAS OS gateway

NAS, cluster, gateway, lun ownership, no partition table, lun stamp
Previously Published As
91196

Change History
Date: 2007-11-13
User Name: 95826
Action: Approved
Comment: - verified metadata
- changed review date to 2008-11-13
- checked for TM - none added
- checked audience : contract
Publishing
Version: 3
Date: 2007-11-13
User Name: 95826
Action: Accept
Comment:
Version: 0

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